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Belimo NFB24-X1 24V Fail-Safe On/Off Damper Actuator
- Regular price
- $435.00
- Sale price
- $435.00
- Regular price
-
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Product Description P/N: NFB24-X1
Description
The Belimo NFB24-X1 is a 24 VAC/DC fail-safe damper actuator designed for on/off control of HVAC air dampers. It provides 90° rotation with a 75-second motor running time and returns to its fail-safe position in less than 20 seconds under specified conditions. Its reversible fail-safe direction, manual override, and NEMA 2 enclosure provide flexible installation and dependable operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Damper Actuators |
| Part Number | NFB24-X1 |
| Subcategory | Fail-Safe Damper Actuators |
| Voltage | AC/DC 24 V |
| Voltage Range | AC 19.2–28.8 V / DC 21.6–28.8 V |
| Control Type | On/Off |
| Power Consumption Running | 6 W |
| Power Consumption Holding | 2.5 W |
| Transformer Sizing | 8.5 VA |
| Motor Running Time | 75 s / 90° |
| Fail-Safe Running Time | <20 s at -20 to 50°C; <60 s at -30°C |
| Angle of Rotation | 90° |
| Rotation Direction | Selectable by CW/CCW Mounting |
| Fail-Safe Direction | Reversible by CW/CCW Mounting |
| Manual Override | 5 mm Hex Crank (3/16 in. Allen), Supplied |
| Overload Protection | Electronic, 0–95° Rotation |
| Sound Power Level Motor | 50 dB(A) |
| Sound Power Level Fail-Safe | 62 dB(A) |
| Position Indication | Mechanical |
| Degree of Protection | NEMA 2 |
| Housing Type | UL Enclosure Type 2 |
| Ambient Temperature | -22°F to 122°F (-30°C to 50°C) |
| Storage Temperature | -40°F to 176°F (-40°C to 80°C) |
| Ambient Humidity | Max. 95% RH, Non-Condensing |
| Air Plenum Compliance | UL 2043 |
| Maintenance | Maintenance-Free |
| Housing Material | Galvanized Steel and Plastic |
| Weight | 4.5 lbs |
Information About NFB24-X1
The Belimo NFB24-X1 is a 24 VAC/DC fail-safe damper actuator designed for on/off control of HVAC air dampers. It provides 90° rotation with a 75-second motor running time and returns to its fail-safe position in less than 20 seconds under specified conditions. Its reversible fail-safe direction, manual override, and NEMA 2 enclosure provide flexible installation and dependable operation.
Key Features:
- 24 VAC/DC Operation: Accepts 24 VAC or 24 VDC power within the specified voltage range.
- On/Off Control: Provides two-position control for HVAC damper applications.
- Fail-Safe Return: Returns to the selected fail-safe position in less than 20 seconds under specified conditions.
- 90° Rotation: Provides adjustable 90-degree damper rotation with a mechanical stop.
- 75-Second Running Time: Completes 90 degrees of motor-driven travel in 75 seconds.
- Manual Override: Includes a supplied 5 mm hex crank for manual actuator positioning.
- Electronic Overload Protection: Protects the actuator throughout the 0–95° rotation range.
- Plenum Compliance: UL 2043 compliant for suitable air-plenum installations.
The NFB24-X1 delivers the reliability and precision required for fail-safe on/off HVAC damper control.
Description
The Belimo NFB24-X1 is a 24 VAC/DC fail-safe damper actuator designed for on/off control of HVAC air dampers. It provides 90° rotation with a 75-second motor running time and returns to its fail-safe position in less than 20 seconds under specified conditions. Its reversible fail-safe direction, manual override, and NEMA 2 enclosure provide flexible installation and dependable operation.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Damper Actuators |
| Part Number | NFB24-X1 |
| Subcategory | Fail-Safe Damper Actuators |
| Voltage | AC/DC 24 V |
| Voltage Range | AC 19.2–28.8 V / DC 21.6–28.8 V |
| Control Type | On/Off |
| Power Consumption Running | 6 W |
| Power Consumption Holding | 2.5 W |
| Transformer Sizing | 8.5 VA |
| Motor Running Time | 75 s / 90° |
| Fail-Safe Running Time | <20 s at -20 to 50°C; <60 s at -30°C |
| Angle of Rotation | 90° |
| Rotation Direction | Selectable by CW/CCW Mounting |
| Fail-Safe Direction | Reversible by CW/CCW Mounting |
| Manual Override | 5 mm Hex Crank (3/16 in. Allen), Supplied |
| Overload Protection | Electronic, 0–95° Rotation |
| Sound Power Level Motor | 50 dB(A) |
| Sound Power Level Fail-Safe | 62 dB(A) |
| Position Indication | Mechanical |
| Degree of Protection | NEMA 2 |
| Housing Type | UL Enclosure Type 2 |
| Ambient Temperature | -22°F to 122°F (-30°C to 50°C) |
| Storage Temperature | -40°F to 176°F (-40°C to 80°C) |
| Ambient Humidity | Max. 95% RH, Non-Condensing |
| Air Plenum Compliance | UL 2043 |
| Maintenance | Maintenance-Free |
| Housing Material | Galvanized Steel and Plastic |
| Weight | 4.5 lbs |
Information About NFB24-X1
The Belimo NFB24-X1 is a 24 VAC/DC fail-safe damper actuator designed for on/off control of HVAC air dampers. It provides 90° rotation with a 75-second motor running time and returns to its fail-safe position in less than 20 seconds under specified conditions. Its reversible fail-safe direction, manual override, and NEMA 2 enclosure provide flexible installation and dependable operation.
Key Features:
- 24 VAC/DC Operation: Accepts 24 VAC or 24 VDC power within the specified voltage range.
- On/Off Control: Provides two-position control for HVAC damper applications.
- Fail-Safe Return: Returns to the selected fail-safe position in less than 20 seconds under specified conditions.
- 90° Rotation: Provides adjustable 90-degree damper rotation with a mechanical stop.
- 75-Second Running Time: Completes 90 degrees of motor-driven travel in 75 seconds.
- Manual Override: Includes a supplied 5 mm hex crank for manual actuator positioning.
- Electronic Overload Protection: Protects the actuator throughout the 0–95° rotation range.
- Plenum Compliance: UL 2043 compliant for suitable air-plenum installations.
The NFB24-X1 delivers the reliability and precision required for fail-safe on/off HVAC damper control.
